Intermittent sensor errors on PacketShaper 12000

Products

• PacketShaper

Issue/Introduction

PacketShaper 12000 sometimes displays sensor errors on the Info tab or the banner show command output. When this occurs, it typically is just after booting up.
In this state, PacketShaper still controls inline traffic, but there is a problem in monitoring the PacketShaper 12000 via SNMP.

Sample of error on PacketShaper UI:

 

Banner Show command output errors:

PacketShaper# banner show
Temperature out of range, CPU 0 Temp
Fan malfunctioning, FAN 9
Voltage out of range, PS1.5V DDR3CPU0
Voltage out of range, VCORE 0
Fan malfunctioning, FAN 8
Fan malfunctioning, FAN 7
Fan malfunctioning, FAN 6
Power Supply down, PS 2 Status
Fan malfunctioning, FAN 5
Fan malfunctioning, FAN 4
Voltage out of range, VTT
Fan malfunctioning, FAN 3
Voltage out of range, PS 3.3V
Voltage out of range, PS 12V
Voltage out of range, PS 5V
Fan malfunctioning, FAN 2
Fan malfunctioning, FAN 12
Fan malfunctioning, FAN 11
Fan malfunctioning, FAN 10
Fan malfunctioning, FAN 1
 

Cause

Steps to reproduce and the root cause is still unknown, but it's not a hardware problem because a manual reboot removes the error messages.

Resolution

To resolve this issue, manually reboot or power off/on the PacketShaper.